acidic floaters Share definition Flag Floating fecal matter that burns your anus like acid as it exits your rectum into the toilet. "OWWW! Acidic floaters flying out my ass! Hon, I need more toilet paper please." acidic floaters by Ink Spot Mike's wife December 25, 2008 0 0 Get merch Get the acidic floaters mug. Buy Now — $32.95 See more merch